Catering vessel (3)
I believe the answer is:
urn
'catering vessel' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for urn that I've seen before include "Vessel for tea or ashes" , "Receptacle for human ashes" , "Huge teapot" , "Water vessel" , "Large vase for funeral ashes" .)